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2464. [port] linux: check that a capability is present before

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trying to set it. [RT #18135]
This commit is contained in:
Mark Andrews 2008-10-15 05:00:57 +00:00
parent f2d09cd90d
commit 88674be665
2 changed files with 18 additions and 11 deletions
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3
CHANGES
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@ -1,3 +1,6 @@
2464. [port] linux: check that a capability is present before
trying to set it. [RT #18135]
2463. [port] linux: POSIX doesn't include the IPv6 Advanced Socket
API and glibc hides parts of the IPv6 Advanced Socket
API as a result. This is stupid as it breaks how the

26
bin/named/unix/os.c
View file

@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: os.c,v 1.84 2008/05/06 01:30:26 each Exp $ */
/* $Id: os.c,v 1.85 2008/10/15 05:00:57 marka Exp $ */
/*! \file */
@ -194,16 +194,20 @@ linux_setcaps(cap_t caps) {
#define SET_CAP(flag) \
do { \
capval = (flag); \
err = cap_set_flag(caps, CAP_EFFECTIVE, 1, &capval, CAP_SET); \
if (err == -1) { \
isc__strerror(errno, strbuf, sizeof(strbuf)); \
ns_main_earlyfatal("cap_set_proc failed: %s", strbuf); \
} \
\
err = cap_set_flag(caps, CAP_PERMITTED, 1, &capval, CAP_SET); \
if (err == -1) { \
isc__strerror(errno, strbuf, sizeof(strbuf)); \
ns_main_earlyfatal("cap_set_proc failed: %s", strbuf); \
cap_flag_value_t curval; \
err = cap_get_flag(cap_get_proc(), capval, CAP_PERMITTED, &curval); \
if (err != -1 && curval) { \
err = cap_set_flag(caps, CAP_EFFECTIVE, 1, &capval, CAP_SET); \
if (err == -1) { \
isc__strerror(errno, strbuf, sizeof(strbuf)); \
ns_main_earlyfatal("cap_set_proc failed: %s", strbuf); \
} \
\
err = cap_set_flag(caps, CAP_PERMITTED, 1, &capval, CAP_SET); \
if (err == -1) { \
isc__strerror(errno, strbuf, sizeof(strbuf)); \
ns_main_earlyfatal("cap_set_proc failed: %s", strbuf); \
} \
} \
} while (0)
#define INIT_CAP \